is it normal almost a 9 month old splash Orpington has not started laying egg?

[puch]

along with a 8 month old black sex link, a 9 month old mix breed? i'v never seen them laying, or try to go nest box

 

[Crazy Chicken Keeper]

along with a 8 month old black sex link, a 9 month old mix breed? i'v never seen them laying, or try to go nest box

My orpington (either a really light blue or a really darksplash) didn't lay till11 months, and my black till 13 months.